diff --git a/VERSION b/VERSION
index fa8116d..4cb34c1 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.0.329
+1.0.330
diff --git a/sky130/magic/sky130.tech b/sky130/magic/sky130.tech
index 299f9e9..76e92f8 100644
--- a/sky130/magic/sky130.tech
+++ b/sky130/magic/sky130.tech
@@ -2460,17 +2460,10 @@
  variants *
  labels SUBPIN port
 
- templayer alldnwell DNWELL,lowerdnwell
- copyup lowerdnwell
-
- layer dnwell DNWELL,lowerdnwell
+ layer dnwell DNWELL
  labels DNWELL
 
- templayer alliso SUBCUT,loweriso
- copyup loweriso
-
- layer isosub SUBCUT,loweriso
- and-not DNWELL,lowerdnwell
+ layer isosub SUBCUT
  labels SUBCUT
 
  layer npn DNWELL